int sensorValue;
void setup() {
pinMode(9, OUTPUT);
}
void loop() {
sensorValue = analogRead(A0);
if (sensorValue <= 300) {
digitalWrite(9, LOW);
}
else if (sensorValue <= 700) {
digitalWrite(9, HIGH);
delay(500);
digitalWrite(9, LOW);
delay(500);
}
else {
digitalWrite(9, HIGH);
}
}